含有流动液体的复合材料管道的振动

ON THE VIBRATION OF COMPOSITE MATERIAL PIPES CONTAINING FLOWING FLUID

摘要: 本文讨论了含有流动液体与复合材料管道的耦合振动问题,其方法是引入位移函数,将文献1中关于考虑沿厚度方向的剪切变形及转动惯量的正交各向异性园柱层壳的五个微分方程式转化成一个微分方程式,在此基础上,借助于文献2中动水压力公式,研究了无限长度复合材料管道在平均流速为U时的振动问题,作了数值计算,得到了一些有意义的结果。

Abstract: In this paper,the problem of free vibration of a composite material pipe containing flo wing fluid is discussed.The pipe is made in mufti-layes and the layers are so numerous. that a designer can set A₁₆,A₂₆,B₁₆,B₂₆,D₁₆,D₂₆,and C₄₅ to vanish.Consequently,the pipe may be regarded as an orthotropic cylindrical shell.